Frequently Asked Questions
Q: Is HyperKewl Cooling fabric safe?
A: Yes. It contains non-toxic polymer. See our MSDS under "Documents".
Q: How does it work?
A: Our HyperKewl is sewn into the lining of all our garments. The special fabric absorbs water very quickly and releases it very slowly for extended cooling from evaporation.
Q: How long do I hydrate the garments?
A: 1-2 minutes.
Q: Can the products be reused?
A: Yes. Just make sure you hang them to dry when not in use.
Q: How much will the items weigh?
A: You control the weight of your garment by how long you hydrate it.
Q: Can I silk screen and/or embroider the products?
Q: How can I wash the garments?
A: In order to maintain the longest life of the product and HyperKewl Cooling fabric it is best to hand wash the garments with a gentle soap and brush.
Q: What temperature is the Phase Change Material (PCM)?
A: A comfortable 14 degrees C.
Q: How do you activate PCM?
A: Solidify the inserts by placing them in a fridge, freezer, or ice water.
Q: How long does it take to activate them?
A: Approximately 30 minutes.
Q: How much does PCM weigh?
A: PCM is 25% lighter than water.
Q: Is PCM safe?
A: Yes, it is non-toxic, non-carcinogenic, and non-flammable.
Q: Is PCM reusable?
A: Yes, the inserts can be re-activated over and over again.
Q: How long will the PCM stay activated?
A: Vest inserts will remain at 14 degrees C for up to 3 hours.
Q: How do HeatPax Warmers work?
A: The Warmers are filled with iron powder which oxidizes when exposed to oxygen. This is a powerful exothermic reaction resulting in heat.
Q: How long do the HeatPax Warmers last?
A: Body Warmers 20 plus hours, Mini/Hand Warmers 8 hours, Adhesive Toe Warmers 5 hours.
Q: Can the Warmers be reused?
A: You can stop the HeatPax at any time and reuse them at a later date by sealing them off from the oxygen in the air (i.e. plastic container or airtight bag). They are discarded when completely consumed.
Q: How do I get the HeatPax Warmers to heat up?
A: Simply tear open the package. Wait 10 minutes for them to heat up fully.
Q: Are HeatPax Warmers safe?
A: Yes, they are non-toxic.
Q: How do I use them to stay warm?
A: After opening them, place the Warmers in your garment or pocket for maximum comfort.